Choclate brownie

Ingredients:
All purpose flour 1/2cup
Cocoa powder 2tsps
butter 1/2cup
sugar 3/4cup
Dark choclate bar 60gms
salt a pinch
eggs 2
baking powder 1/2tsp
chopped walnuts 1/4cup

Procedure:
1.Preheat oven at 200C.
2.Heat a pan,melt butter and add chopped choclate pieces in butter.
3.Add sugar in choclate butter mix and whisk for a minute,beat the eggs for a minute and keep a side.
4.Sieve allpurposeflour,bakingpowder,salt,cocoa powder in a bowl.
5.Mix the dry ingredients,chopped nuts to the egg and butter mixture and mix it properly to avoid lumps.
6.Grease the baking tray with one tsp of butter and pour cake mix into the tray.
7.Place the tray in oven and  bake at 220C for about 20minutes, Test with fork and make sure that it comes out clearly.It indicates cake is perfectly baked,if not bake for few more minutes.
8.Take out the tray  and cool it completely.
9.Turn it upsidedown onto a flat plate and cut into squares.